Electric sadiron



Nov. 30 1926.

1,608,899 F. H. VMAYER ELECTRIC SADIRON Original Filed Oct. 18, 1922 N VEN Tok.'

- T7* RNE ys.

Patented Nov. 3o, 1926.

- tively disposed I should,in either case,

UNITED STATES FRED H. MAYER, 0F SALEM, O REGN.

ELECTRIC SADIRON.

'Application sled october 1e, 1922, serial No. 595,288. Renewed' :une 7,1926.

' My invention relates particularly to s'adirons that are adapted to be heated by electricity, in which a plurality of independent heating circuits is provided, but in its broader aspect comprises a novel means ofthermostatic control of a plurality of heating circuits for making and breaking circuit, whereby the lite of the electric contacts is eectually prolonged, tensity and consequent eiiiciency of the heating energy employed may be greatly augmented without the danger of burning out Aof the contacts to which ordinary ,thermostats are subject.

In respect tothe means of thermostatic control, my invention consists inf'a thermostatic make and break connection, enclosed in circuit, within a sealed chamber in a deoxygenized atmosphere.

What constitutes my invention will he hereinafter specified in detail and succinctly set forth-in the appended claims.

In the accompanying drawing in which I illustrate my invention in present preferred form of embodiment,

Figure I is a side elevation partially u1n vertical section, o an electric sad-iron embodying my invention.

Figure II is a top plan view of the same with the top of the sad-iron removed.

Figure III is av section on the line III--III of Figure I.

Referring to the numerals on the drawing, 1 indicates, for example, member or base to which a suitable handle 2 is secured as through an intermediate cap or cover 3, which is preferably. fastened as by screws 4 to a heat-conserving bifurcated member 5 which is in turn secured as by `screws 6 to the base 1.

The member 5 may be in fact a two-part member, provided the two parts are relaone to the other so as, in effect, to constitute a bifurcated member whose sides are located in juxtaposition toand are substantially coextensive with the opposite ,outer edges othe base- 1 which the member 5 surmounts. Whether the said member 5 be made in one or two pieces, provision be made forv the juncture of the sides at the -ront end o the base so as to constitutea massive heat conserving toe-piece to effect concentration of heat at the point where it is most needed.

In operative propinquity to the member 5, for the purpose of heating it, I provide,

and,\whereby4 the ind 'short lived, owing Mto the a faced ironing.

vtween the legs or two parts of the lcap 3. The pillow independent circuits. Both circuits .derive lelectricity through leads 11 and 12 communicating with a line-wlre switch socket 14 after the ordinary manner. .The circuit including the wire 9 is aconstant one, dependent only upon supply of energy for its constancy. The circuit which includes the wire 10 is intermittent, being broken, whenever a critical temperature is reached, by a thermostatNlet into said circuit and enclosedwithin a case 16.

The purpose of the employment ofaplu- 4rality of circuits is to provide a quickly efficient means of raising the temperature of ythe base 1 to a desired degree, and afterf wards to hold that temperature, substantially, without danger of extending it and with ood economy of electric energy in operatlng the device. f

Hitherto an obstacle in the way of per- 4ecting a practical instrument'of the kind just described, had it been contemplated, existed in" the fact that thermostats which would Ado the work demanded of them were quick decay, through' oxidizatlon, of the .make and ,break contacts of Y An important feature vof my invention consists in ensealing a thermostat in a deoxygenized atmosphere, within an hermetically sealed case 16. By the term deoxygenized I designate any gaseous atmosphere or a 9 andl() of a pair of y the thermostat, in the perform-- ance of theirrequired function.

vacuum which is lacking' either entirely or substantially, in oxygen. Air deprive Iits oxygen constituent would satisfy the. denition, and attempt to enumerate the entire class connotation is` deemed unnecessary. The case 16 may be made of any suitable metal or material such as glass, vfor example. It is confined preferably with facility of detachment and insertion `Within the space bel member ias by a pillow 17 below it and disposedbetweenit and with a clip 18 screwed, forexample, to the 17 is preferably of a mass, extent, and substance which'will capacitate for the ready conduction and conservation of dofthe top of the base 1, coactng heat, and thereby render the switch delicately sensitive to changes of temperature 1n the 1. l i i Within the case 16, the thermostat comprehends a pair of arms 19 and '20 provided" other suitable and inexpensive material.

The purpose of using a plurality of circuits is to afford econom of electric energy in the use of the iron an to avoid excessive heating of the iron, it being feasible through action of my thermostat to hold an iron after it is once heated at desired temperature by comparatively small accretions of heat units.

The construction and arrangements of the member 5 affords conservation and advantageous distribution of heat communicatedto it, while therdisposition of the thermostat between the legs or parts thereof renders-it readily responsive to changes of temv perature in the iron.

W'hat I claim is: 1. The combination with a member to be heated and members of a plurality of heat- 4ing circuits in operative communication therewith, of a thermostatic control switch Lacasse in one of said circuits, ensealed within a deoxygenized atmosphere, substantially as set forth.

` 2. The combination with a sad iron base and its cover of a bifurcated substantially V-shaped heat-conserving member whose arms are located in juXta-position to and substantially co-extensive with said base, an electric heating element substantially concealed between the arms of said member and base substantially as and for the purpose described, and 'thermostatic switch mechanism disposed between said arms.

' 3. The combination with a lsad-iron base and its cover, of a bifurcated heat conserving .member whose sides are located in juxtaposition to and are substantially coextensive with the said base, an electric heating element in operative disposition to the base and said member, a plurality of heating circuits .in -operative communication with said element, and in one of said circuits a thermostatic control switch ensealed in adeoxygenized atmosphere and located within the bifurcated portion of said member.

4. The combinationwith a. sad-iron base, and an electric heating element and its circuit making member in operative disposition to the base, of a thermostatic control switch in circuit with said member, and a heat conserving pillow operatively interposed between said switch land base.`

In testimony whereof, I have hereunto set my hand.

FRED. H. MAYER.y 

